Finding the Fourth Proportional to 19,538,620.29, 26,945,652.06 and 12,197,134.68
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Solution
The fourth proportional to 19,538,620.29, 26,945,652.06 and 12,197,134.68 is: 16,821,031.49
Step by Step Solution
- Step 1: Write the proportion equation
19,538,620.29 : 26,945,652.06 = 12,197,134.68 : x - Step 2: Convert to fraction form
19,538,620.29/26,945,652.06 = 12,197,134.68/x - Step 3: Cross multiply
19,538,620.29x = 26,945,652.06 × 12,197,134.68 - Step 4: Simplify right side
19,538,620.29x = 328,659,747,216,239.44 - Step 5: Solve for x
x = 328,659,747,216,239.44/19,538,620.29 - Step 6: Final answer
x = 16,821,031.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.